The KQ PJ-4200 Atomizer Spray Dispenser utilizes pressurized air to create fine droplets of glue, ensuring precise and uniform application. Its specially designed nozzle employs Newtonian air flow technology, seamlessly mixing the capillary flow of glue with air. A high-pressure air jet generates tiny glue droplets, which are then evenly sprayed onto the product, creating an ultra-thin spray pattern.
This technology is particularly useful for applications that require an extra-thin layer of glue without excessively wetting the paper. As a result, glue marks remain invisible on the reverse side of thin paper, ensuring a clean and professional finish.
Additionally, the KQ PJ-4200 is ideal for bookbinding, where a large surface area needs to be glued with a minimal amount of adhesive—perfect for attaching paper to hardcover materials with precision and efficiency.
Feature:
Thin later of glue
Glue will not ooze out when pressed togather
Requires 2 channel of control
Technical Parameters:
Product Name
:
Atomizer Spray Dispenser
Model
:
PJ-42100
Maximum viscosity
:
5000mPas
Max Voltage
:
12 V
Glue Pattern
:
Thin film
Max Pressure
:
32 bar
Max Running Speed
:
80 m/min
Core Advantages:
Unique atomized thin-film gluing technology
Adopts Newtonian airflow atomization structure, mixing pressurized air and cold glue to form uniform tiny glue droplets. It outputs an ultra-thin continuous adhesive film, totally different from line/dot gluing of standard valves. The glue layer is lightweight and even without local thick buildup.
No paper penetration & invisible reverse glue marks
It avoids excessive water saturation on thin coated paper, art paper and lightweight book pages. No translucent glue stains show on the back of paper substrates, keeping printed patterns clean and premium appearance for high-end products.
No glue overflow after pressing
The fine atomized glue layer distributes evenly across the whole bonding surface. When two materials are laminated and pressed, extra glue will not squeeze out from edges, eliminating manual trimming and reducing defective rate.
32-bar high-pressure gravity-free mounting
Max working pressure reaches 32 bar, supporting horizontal, vertical and upside-down installation inside narrow machine frames, same as PJ-4000 series electric valves. It adapts complex internal layout of folder gluers and book binding lines.
Independent dual-channel control requirement
Needs 2 separate controller channels to regulate glue flow and atomizing air pressure respectively, allowing independent adjustment of spray width and glue coating thickness to match different paper grammages.
Stable 12V electric drive & wide glue compatibility
12V low-voltage safe operation, compatible with water-based cold white latex up to 5000mPas viscosity; exclusively for cold glue, hot melt adhesive cannot be used. Compact stainless steel valve body resists corrosion in humid workshops.
Main Applications:
Bookbinding Industry (Core Scenario)
Hardcover book inner lining lamination, cover paper bonding, notebook page surface pasting, album photo paper mounting. It realizes large-area uniform thin coating without paper wrinkling caused by excessive moisture.
Premium Thin Paper Packaging
Ultra-thin coated gift boxes, cosmetic color boxes, thin window patch film full-surface lamination, high-end leaflet and brochure surface bonding. Solves see-through glue trace issues on thin art paper.
Special Paper & Lightweight Lamination
Thin kraft paper lining, paper display rack full-surface adhesion, lightweight rigid box inner paper bonding, thin paper handbag partial surface spraying.
Matching Cold Glue Equipment
Compatible with KQ-PJ23, KPM-PJ-V24 (HB6 pump) and KPM-PJ-V28 (HB9 high-flow pump). Installed on medium-speed flexo folder gluers, automatic book binding machines and semi-automatic thin paper laminating lines, maximum applicable line speed 80 m/min.
Q1: What is the core difference between PJ-4200 and PJ-4000/PJ-4100 standard valves?
A1: PJ-4200 produces uniform atomized thin film glue layer for full-surface lamination, while other models only output line or dot glue tracks. PJ-4200 is dedicated to large-area thin coating, others for linear edge sealing and point positioning bonding.
Q2: How many control channels does PJ-4200 require?
A2: It needs 2 independent control channels, one for glue supply flow and another for atomizing air pressure, to adjust spray thickness and coverage width separately.
Q3: What is the maximum running speed this spray valve supports?
A3: Max production line speed is 80 m/min, designed for medium-speed laminating and book binding lines, not suitable for ultra-high-speed carton production over 100 m/min.
Q4: Will the sprayed cold glue seep through thin paper and leave marks?
A4: No. The ultra-thin atomized coating avoids over-wetting paper fibers, so no transparent glue stains appear on the reverse side of thin coated paper and book pages.
Q5: What technical parameters does PJ-4200 have?
A5: Rated voltage 12V, max working pressure 32 bar, applicable glue viscosity ≤5000mPas, exclusive thin-film spray pattern.
Q6: Can this spray valve be mounted upside down in narrow machine spaces?
A6: Yes. 32-bar high-pressure feeding eliminates gravity restriction, supporting all-angle installation same as PJ-4000 series electric valves.
Q7: Is glue overflow a problem after pressing bonded materials?
A7: No. The fine atomized glue evenly covers the whole surface without thick local glue accumulation. No excess glue will squeeze out when laminates are pressed together.
Q8: Which customers are most recommended to choose PJ-4200?
A8: Book printing factories, manufacturers producing thin coated high-end gift boxes, factories requiring full-surface uniform lamination without paper penetration and overflow glue.
We are committed to excellence in everything we do and look forward to working with you!
QUESTIONS OR CONSULTING
Contact Information
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+86 181 0293 8927
+86 189 2556 0856
luna@keqi-auto.com
lc@keqi-auto.com
No.8 Jinniu Street, Taigongling, Dalingshan Town, Dongguan City, Guangdong Province,CHINA
